1901,23,25,20.8,15,11,6.3,5.3,7.4,13.2,15.1,22.4,23.9
1902,24.7,24.4,20.9,15,10.5,7.1,6.3,6.8,11.9,16.3,20.7,20.5
1903,23.1,23.5,22.4,16.9,9.8,6,5.1,7.4,11.5,15.3,19.2,19.9
1904,21.4,21.4,18.8,14.9,11.5,6.7,6.4,7.3,10.6,15.9,19.5,22.9
1905,24,22,20.7,16,11.8,7.7,5.7,6.3,9.1,12.7,18.9,22.7
1906,25.6,25.5,19.1,17.4,12.2,9.8,7.9,8.8,11.9,15.3,17.4,20
1907,23.2,22.7,18.2,13.5,10.5,8.3,5.8,7.4,12.5,16.9,18.4,22.7
1908,25.1,23.5,18.5,15,11.2,5.8,7,7.6,8.9,14.3,19.3,22.8
1909,22.9,22.1,20.3,14.1,10.8,10,5.5,9.8,10.9,17.2,18.6,19.6
1910,21.9,22.6,18.6,15.3,11.4,8.5,7.3,9.3,13.1,13,17,19.6
1911,22,20.5,18.2,14.4,10.7,5.8,6.8,9.3,11.8,15.8,19.5,21
1912,22.7,24.4,21.1,13.6,10.1,6.8,5.5,8.7,11.9,15.1,17.2,21.1
1913,23,22.5,18.3,15.8,7.9,4.8,5.9,7.4,10,15.1,17.8,22.5
1914,23.8,23.1,20.6,15.5,12.1,7.8,5.9,9.8,11.3,14.6,23,24
1915,22.8,25.5,20.8,15,10.2,8.8,6.7,7.7,13.3,14.5,18.5,20.5
1916,24.2,22.3,20,12.5,11.4,9,6.7,8.1,11.6,14.1,16.3,19.8
1917,22.1,20.2,18.5,12.5,7.6,5.9,6.8,6.6,10.9,14.9,17.1,22.1
1918,22,21.4,17.2,13.8,10.7,8.1,4.4,7.9,10.2,15.9,18.8,21.3
1919,22.9,22.8,18.3,17.3,11.4,9.1,4.7,7,11.5,14.1,20.2,23.3
1920,21.8,21.3,17.2,15,10.2,8.6,7,6.9,11.3,14.9,18.8,19.7
1921,22.7,22.6,19.1,14.6,12.9,9.8,8,6.9,12.8,14.5,20.2,21.3
1922,22.2,23.5,19,18.2,10.8,7.4,4.6,6.8,11.2,15.8,19.2,21.3
1923,22.9,23.7,21.4,17.3,12.1,8.3,6.2,6.2,9.4,13.5,16,22.4
1924,21,22,19.2,12.6,10.7,7.2,7.4,8.9,12.7,15.2,18.4,19.2
1925,22.2,24.5,20.4,15.9,10.6,8,6.7,7.2,9.7,13.8,19.9,22.4
1926,22.4,24.7,21,15.2,8.7,6.4,7.4,8.7,11,14.9,18.3,20.2
1927,23.2,21.5,20.6,14.2,8.8,8.4,6.9,7,11.3,14.6,19.7,21.1
1928,22.3,23.1,20.7,17,10.3,8,7.5,10.5,13.7,16.4,19.7,23
1929,23.7,24.5,20.5,14.3,9.7,7.8,4.7,9.3,11.5,12.6,19.4,19.8
1930,23.3,24.1,21.2,15.8,10.8,7.7,8.2,8.2,11.5,17,20.3,21.9
1931,23.4,23,20.8,16.1,12.4,8.8,7.2,7.6,12.4,14.2,18.2,21.7
1932,26.7,22.2,21.6,14.7,12.5,7.7,6.5,9.4,10.5,12.9,18.6,20.7
1933,22.5,21.8,22.2,16.5,11.8,8.5,6.4,7.4,11.6,15.2,18.7,21.3
1934,23.9,23.3,22.7,15.9,11.6,8,7,8.1,12.7,14.9,19.5,20.6
1935,23.4,22.8,21.7,14.5,8.4,7,7.5,9.5,12.2,16,19.5,21.3
1936,24.3,23.7,20.1,14.6,11.1,6.7,8.1,9.8,10.6,15.3,18.8,21.7
1937,23.9,23,20.9,14.5,11.1,6.8,7,9.6,11.7,15.8,20.4,21.8
1938,24.8,22.6,21.9,15.9,12.5,9.1,8,8.2,12.3,17.7,22.3,22.7
1939,26.5,23.8,21.3,16.8,12.6,9.1,6.2,7,9.9,14.2,19,20.4
1940,24.9,22.3,20.6,15.5,9.3,7.4,5.4,8.5,11.4,17.8,18.7,23
1941,21.5,22.4,20.1,17.1,10.6,7.6,6.2,6.9,12.2,15.9,20.9,22.7
1942,25.9,24.1,21.5,16.9,14.3,9.9,7.9,9,12.2,15.1,19.7,22.8
1943,23.7,24.2,22.6,16.2,10.6,5.3,6.2,7.5,11.7,16.3,18.5,21
1944,23.8,22.2,20.2,12.9,8,7.2,6.6,8.6,13.4,15.1,20.5,21.8
1945,22.7,22.5,20.1,15.5,11.3,9.4,7.6,11.1,12.3,15.1,18.2,22.4
1946,24.3,23.7,18.4,12.9,11.7,5,6.5,7.5,11.4,13.2,19.7,21.5
1947,25.3,24.2,22.1,13.9,12.1,7.7,7.9,8.4,12.1,15.8,18,20.7
1948,21.8,24.7,19.6,15.7,10.3,7.3,7.1,8.3,10.7,15.4,19.5,21.3
1949,21.4,22.5,21.5,14.1,10.2,4.5,5.7,7.7,11.3,16.3,18.4,22.4
1950,22.9,23.2,20.2,15.3,12.5,7.7,6.8,6.9,11.7,15.4,20.2,22.4
1951,23.4,23.4,22.2,13.8,9.5,8.8,7.5,6.8,12,16,18.9,20.7
1952,25.3,22.7,20.6,14.8,12.1,6.7,5.8,8.5,12.1,15.6,18.6,22.3
1953,23,21.4,20.7,17.8,9.6,7,5,6.7,11.9,16,19.5,23.4
1954,23,21.8,18.8,17.6,11,6.4,7.6,8.2,9.4,15.2,18.6,21
1955,23.4,23.2,20.1,15.5,9.6,10.5,7.4,9.9,13.1,17,17,19.2
1956,21.5,23.4,19.7,15.4,11,7.3,8.4,6.1,10.2,14.4,17.7,20.8
1957,25.3,23,18.9,16.1,9.3,10.4,5.2,8.3,9.5,15.5,18.1,23.3
1958,22.6,22.7,21.5,18.4,13.4,7.6,7.7,9.5,9.2,15.3,21.3,20.6
1959,25.6,23.1,20.9,16.4,11.5,8.2,7.8,8.8,14,15.8,21.3,20.4
1960,26.2,25.1,20.2,15.3,8.9,6.1,8,6.8,11.4,15.6,17,21.9
1961,23.3,21.7,19.7,18.2,9.7,6.8,5.6,6.7,12.9,16.7,19.5,22.9
1962,24.2,24.3,20.4,15.6,9.6,9.7,8.7,7.8,11.8,16.9,20.9,21
1963,23.9,25,22.7,17.1,12.8,8.8,7.1,8.5,11.1,16,19.9,23.5
1964,23.7,21.9,20,17.1,10.4,7.4,7.3,8.6,14.1,15.3,19.6,21.3
1965,22.9,23.8,22.2,13.7,11.2,8.4,5.2,9.1,14.9,17.2,20.2,23.2
1966,23,22.4,19,15.3,9.2,8.4,6.1,7.9,10.8,14.5,19.7,21.3
1967,24.7,24.6,19.3,16.4,12.3,8.9,5.5,6.5,10.9,18.7,20,20.9
1968,25.4,25.9,22.7,17.2,10.5,9.5,6.2,7,11.2,14.6,19,20.8
1969,25.5,25.8,20.6,14.7,10,6,8.2,7.8,10,17.3,17.5,21.8
1970,21.5,23.6,18.9,14.2,8.9,6.6,4.1,6.5,9.6,15.7,19,21.6
1971,23.6,23.7,22.9,15.9,9.4,4.6,4.7,8.5,12,14.7,17.9,21.6
1972,20.9,22.4,19.6,14.3,10.8,8.1,5.4,9.6,11.8,15.8,20.3,23.4
1973,25.7,24.2,21.2,18.4,13,9.9,9.9,9.2,11.7,17.1,19.2,21.8
1974,24,22.2,21.3,17,11.7,5.8,7.4,8.6,10.6,15,17,20.6
1975,20.8,22.1,19.4,14.8,10.4,7.1,8.5,7.8,13.4,14.4,19.2,22.9
1976,21.6,22.9,20.3,14,7.9,5.1,5.5,6.5,10.1,14.2,17.7,21.4
1977,22.8,24.3,20.4,15.2,10.8,5.9,4.7,7.8,10.3,16.7,19.9,22.1
1978,23.8,24.8,20.8,12.9,11.7,7.8,7.5,7.6,10.1,15,18.4,19.2
1979,24.9,22.4,19.9,16.4,11.4,8.5,5.3,8.4,13.9,15,21.5,22.5
1980,23.5,23.9,22.2,17.3,12.3,6.9,6.9,8.7,12.5,17.4,20.1,22
1981,25.7,25.6,18.3,17.6,12.8,9,7.3,7.7,12.9,14.9,19.2,23.5
1982,25.8,25.9,22.1,16,10.2,4.6,4.6,9.7,11.3,13.2,20.8,24.2
1983,24.1,27.7,23.6,15.2,12.1,7.5,5.3,8.7,14,16.8,20.3,23.1
1984,22.3,23.4,18.7,15.8,10.8,7.1,6.1,7.3,9,16,19.4,22.7
1985,23.7,24.7,22.9,15,11.9,6.1,5.9,8.7,10,15.1,20.3,20.3
1986,22.7,22.8,22.6,15.6,11.9,7.6,8.1,8,11.2,14.3,18.9,20.9
1987,24.9,24.8,18.3,17,11.2,9.5,6.4,7.8,11.6,16.8,19.9,23
1988,25.8,22,21.9,17,13.4,8,7.7,9.1,12.5,18.1,19,24.1
1989,23.4,23.6,22.4,18.1,13.5,6.4,6.1,5.7,11.2,17.2,18.3,22.2
1990,25.7,20.9,21.9,17.1,12.7,8.2,8.3,8.1,12.6,16.6,21.3,23.8
1991,24.4,25.5,20.8,15.4,9.7,10,6.1,7.7,13.4,16.7,21.9,21.4
1992,22.4,24.5,21.3,17.5,12.2,7.3,5.7,8.3,11.6,15.5,16.5,22.1
1993,26.5,24.8,20.5,18,13.6,7.6,9,8.9,11.8,15.6,20.5,22
1994,25,24.8,19.1,15.1,9.8,7.4,6.1,5.9,10.4,15.7,19.1,23
1995,25.5,24,20,13.5,10.8,9.1,7.6,9.9,13.4,16.1,21.2,20.8
1996,25.1,22.8,21.1,14.1,11.4,10.3,8.4,10.1,12.6,16.9,18.8,24.1
1997,23.8,26.5,20.1,16,12.9,6.9,5.2,6.9,14.2,17.6,21,25.7
1998,26.1,23.7,21.9,16.4,12.2,8.2,9.2,10.8,14.7,18.3,20.3,23.1
1999,27.4,24.6,22.7,15.5,12.4,7.4,7.4,9.8,13.8,18.1,18.3,22.3
2000,23,25.6,23.8,19.1,10.8,6.3,7.4,9.1,14.9,16.4,21.8,24.4
2001,27.3,26.7,21.8,16.6,9.9,8.3,7.3,8.3,13.3,15.6,19.5,22.7
2002,24.6,22.9,21.2,18.4,12.6,7.4,5.8,7.7,14.3,14.8,22.7,22.3
2003,26.6,26.2,19.3,16.8,12.8,7.2,8.1,9.9,14.9,15.5,21.1,25.7
2004,27.4,26.5,22.4,17.5,11.4,8.4,6.5,8.7,11.5,17.1,20,22.3
2005,24.6,22.4,23,20,12.2,10,8.1,9.3,14,18.1,21.4,24.7
2006,29.1,25.7,23.7,16.3,9.6,5.5,6.2,8.1,13.1,17.1,20.6,22.8
2007,24.3,24.3,21.5,16.6,13.5,5.5,5.6,8.2,12.4,16.9,21.6,23.1
2008,24.8,23.4,20.8,14.7,10.1,9.4,6.2,7.3,12.6,17.4,21.1,22.8
2009,24.2,23.8,19.7,15.9,11.1,7.4,6.6,10.1,12.4,15.4,21.6,23.5
